Our History

CPA Accounting Firm in laurel Maryland. R.T. McCalpin and Associates, LLC (RTM CPA) is a full-service Certified Public Accounting firm formed in 2009 in Laurel, Maryland. RTM CPA specializes in offering and delivering value-added services to our clients through professional audit and accounting guidance and expertise. Over the last 23 yes, we have assembled a team of experienced and professional accountants, who offer tailor-made solutions to our clients, assisting them in building professional business relationships. We share insightful information with our clients on a regular basis to keep them abreast of emerging accounting and tax issues and practices. We also maintain a comprehensive and extensive continuing professional education program for our staff to ensure our staff always deliver top-notch quality services to our clients.

CPA Accounting Firm in laurel Maryland.We are a client-service oriented company that values and understand the importance of meeting the expectations of our clients. Our primary goal is to provide quality, professional, and personalized services to all our clients at affordable rates. We are proud of our enduring reputation of delivering high-level accounting expertise and consulting to our clients. Our CPA firm is licensed to provide professional accounting services in the states of Maryland, Virginia, the District of Columbia. Our audit and accounting services are offered to client throughout the Washington Metropolitan Area and beyond. We are here to help you boost your business growth and profitability by offering unparalleled service and excellence beyond traditional accounting. Contact us today for your free consultation!

CPA Accounting Consulting Firm in laurel Maryland

Meet Our Principal

Diana McCalpin, CPA, CGFM

Diana McCalpin has over 25 years of experience in both public and private accounting and more than 18 years as a practicing Certified Public Accountant. Diana is instrumental in the Firm’s ability to bring value, support, and solutions to small businesses in several industries including government contracting, professional services, non-profit, and technology, to name a few. Diana began her career in private accounting at a large Government contracting technology firm in Maryland. After spending four years in the accounting department, she joined a small local public accounting firm, whose practice focused on Government Contracting, Real Estate, and Not-For-Profit Industries. After several years, she joined a mid-size public accounting firm in Maryland in the Government Contracting group. A few years later Diana joined the Real Estate and Non-Profit group at large national public accounting firm. In, 2009, Diana formed R.T. McCalpin & Associates, LLC (RTM CPA), that serves small and mid-sized businesses of all industries. Diana graduated from the University of Maryland, University College with a Bachelor of Science degree in Accounting and a Master of Science Degree in Accounting and Finance.

What Sets Us Apart from the Competition?

Accurate, Quality Service

Reliable, On-Time Service

Trusted Client Relationships

Professional, Affordable Services

Why Choose Us?

At RTM CPA, we treat each client as if they are our only client. Unlike other firms, we want our clients to hold us accountable for what we promise. We promise to always be responsive to your needs and to always strive to deliver on time. We are committed to providing value added professional services and to delivering exceptional client services. The services we provide will allow you to focus on building and growing your business, while we take care of all your accounting and financial needs.